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Conditions We Treat: Allergies

People who suffer from allergies have immune systems that respond to common allergens in the environment — such as pollen and animal dander — by release of chemical mediators from the body such as histamine. The histamine and other chemical mediators which are released by the body then cause the allergy symptoms to develop.

Allergies: What You Need to Know

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  • About 45 million Americans suffer from allergies.
  • Common symptoms of allergies include frequent sneezing, itchy eyes, nose or throat, stuffy nose, runny nose and postnasal drip.
  • Allergies may also play a part in other disorders of the ear, nose and throat area, such as ear infections, hoarseness and sinusitis.
  • Both adults and pediatric allergy patients can easily undergo evaluation and diagnostic allergy testing and receive their results within the same day. Allergies are diagnosed with either a skin test, where small amounts or allergen are placed on the skin, or with blood testing.
  • The treatment of allergies typically involves the combination of avoidance of the allergens if possible, medications and immunotherapy (allergy shots or sublingual drops/tablets that are taken under the tongue at home). Medications helpful in treating allergies include nasal steroids and antihistamines.

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Why Choose Johns Hopkins for Allergies?

dr. sandra lin with allergy drops

Our Innovative Treatments

Dr. Sandra Lin is a leader in the field of sublingual immunotherapy, an allergy treatment that replaces allergy shots with drops.

Learn more about sublingual immunotherapy.
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Our Diagnostic and Treatment Options

Our allergy specialists will conduct thorough allergy testing that includes a clinical examination and possible imaging or enoscopy. We provide patients with same-day results and offer each patient an individualized treatment plan.

Learn more about diagnosing and treating allergies.
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Our Patient Education

Sandra Lin, M.D., answers some of the most common questions about sinus and allergy conditions and treatment options.

Watch our sinus and allergy patient education video.